Manganese in runoff from upland catchments: temporal patterns and controls on mobilization / Teneur en manganèse de l'écoulement en bassins versants d'altitude: variations temporelles et contrôles de la mobilisation

Heal, Katherine; Kneale, Pauline; McDonald, Adrian

doi:10.1080/02626660209492979

Cited by 24 publications

(3 citation statements)

References 27 publications

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“…Soil solution concentrations of Mn even slightly decreased from 3.0 to 1.4 mg L -1 , likely because of the increase in pH under waterlogged conditions (Table 3). In contrast, soil solution concentrations of Mn increased for the high pH soils, especially for Soil 3 (from 0.1-4.1 mg Mn L -1 ), likely because of reduction of Mn(III/IV) oxides to Mn(II) (Heal et al, 2002), which explains the increased Mn uptake under waterlogged conditions (Stokes et al, 1988;Florido et al, 2011).…”

Section: Growth Of Barleymentioning

confidence: 99%

Manganese Toxicity in Barley is Controlled by Solution Manganese and Soil Manganese Speciation

Hernandez‐Soriano

Degryse

Lombi

et al. 2012

Soil Science Society of America Journal

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All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. Manganese Toxicity in Barley is Controlled by Solution Manganese and Soil Manganese SpeciationSoil Chemistry M anganese is an essential micronutrient for all organisms. Natural background concentrations of Mn in soil range from 0.5 to 5000 mg Mn kg -1 (Baize, 1997) and the oxidation state range between 0 and +7, with +2, +3, and +4 the most common oxidation states in natural environments. In soils, Mn solubility is determined by two major variables: pH and redox potential. In alkaline well-aerated soils, Mn may be insuffi ciently available to plants for healthy growth (Graham et al., 1985;Curtin et al., 2008). At pH above 5.5 and under aerobic conditions, Mn(III) and Mn(IV) (hydr)oxides precipitate (Scheff er and Schachtschabel, 1989). However, Mn toxicity may become a limiting factor for crop production when large concentrations of Mn(II) are present. Manganese(II) is highly soluble and is the thermodynamically most stable form in soils at low pH (Porter et al., 2004) or under reducing conditions as may happen in soils with poor aeration as a result of waterlogging or compaction (Foy, 1984;Weil et al., 1997).

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Section: Growth Of Barleymentioning

confidence: 99%

Manganese Toxicity in Barley is Controlled by Solution Manganese and Soil Manganese Speciation

Hernandez‐Soriano

Degryse

Lombi

et al. 2012

Soil Science Society of America Journal

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“…Previous studies linked manganese concentration as well as seasonal variations in surface water to soil type and attributed a concentration increase from the rewetting of dried peat soils (Heal et al, 2002). Other studies found that manganese could also get mobilised through humic substances in the surrounding soil (Madigan et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

Iron and manganese mobilisation due to dam height increase for a tropical reservoir in South East Asia

Gödeke

Jamil

Schirmer

et al. 2022

Environ Monit Assess

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Highlights A tropical reservoir in South East Asia was investigated over a 5-year period. Water quality monitoring reveals an increase in iron and manganese due to a rise in the dam height of the reservoir. The increase in iron and manganese is linked to the enlarged footprint of the reservoir, with previously oxic sediments becoming submerged during the process and the establishment of reducing conditions. Iron and manganese display a seasonal component with increased concentrations during the wet season. Geochemical simulations confirmed that the dissolution of MnO2 and FeOOH through the oxidation of organic matter led to increased iron and manganese concentrations in the reservoir.

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“…Soil pH of 6 favors Mn to bond with organic matter, oxides, and silicates, thereby decreasing solubility of the metal. Additionally, acidic soils with low organic matter will warrant high availability and solubility of Mn in anaerobic conditions at pH above 6 and in aerobic conditions at pH below 5.5 (Heal et al, 2002;Nadaska et al 2012).…”

Section: M3-mn Mnd Mno and Mnp In Bulk And Soil Aggregatesmentioning

confidence: 99%

Depth Distribution of Bulk and Aggregate-Associated Manganese Oxides Mediated by Soil Chemical Properties in a Long-Term Fertilized Paddy Soil

Anthonio

Huang

Han

et al. 2020

J Soil Sci Plant Nutr

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Fertilization regimes greatly influence how manganese (Mn) oxides are recycled. However, information on this subject is scarce in rice managed paddies. The objective of this study was to examine the distributions of Mn pools in bulk soil and aggregates under different chemical and organic fertilizer ratios at both surface (0-20 cm) and subsurface (20-40 cm) soil depths. Depth distributions of Mn pools in bulk soil and aggregates were extracted using Mehlich 3 (M3-Mn), dithionite (Mnd), oxalate (Mno), and pyrophosphate (Mnp) solutions under a long-term fertilization experiment in a double rice cropping system. Fertilizer treatments comprised unfertilized control (CK), mineral nitrogen, phosphorus, and potassium (NPK), 30% mineral NPK + 70% organic fertilizer (30F; pig manure + milk vetch), 50% mineral NPK + 50% organic fertilizer (50F), and 70% mineral NPK + 30% organic fertilizer (70F) under a randomly complete block design (RCBD) in paddy conditions. A pattern of 30F > 50F > 70F > NPK > CK was established with positive and significant correlations among total organic carbon (TOC), total nitrogen (TN), and pH. All pools of Mn were in higher concentrations at the subsurface compared to the surface layer, where all aggregate sizes contributed equally to the enrichment of the metal oxides except for Mno in the 0.25-2.0 mm sizes at the surface layer. Distribution of manganese oxides was equal among the different soil aggregates which could cause the microaggregates to transport Mn oxides and pollute both surface and underground water sources.

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Manganese in runoff from upland catchments: temporal patterns and controls on mobilization / Teneur en manganèse de l'écoulement en bassins versants d'altitude: variations temporelles et contrôles de la mobilisation

Cited by 24 publications

References 27 publications

Manganese Toxicity in Barley is Controlled by Solution Manganese and Soil Manganese Speciation

Manganese Toxicity in Barley is Controlled by Solution Manganese and Soil Manganese Speciation

Iron and manganese mobilisation due to dam height increase for a tropical reservoir in South East Asia

Depth Distribution of Bulk and Aggregate-Associated Manganese Oxides Mediated by Soil Chemical Properties in a Long-Term Fertilized Paddy Soil

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